CN110507010B - Electronic cigarette capable of automatically controlling heating temperature based on cartridge detection - Google Patents

Abstract

The present invention discloses an electronic cigarette that automatically controls the heating temperature based on cartridge detection, including a cartridge, on which a resistance ring is arranged; a cigarette cover assembly, including a shell, a heating assembly placed in the shell, and a cartridge detection probe, wherein the first end of the cartridge detection probe contacts the resistance ring, and the heating assembly is used to heat the cartridge when the cartridge is inserted into the shell; an electric control assembly, including an upper shell and a lower shell, wherein the upper shell is connected to the shell of the cigarette cover assembly, a circuit board is built into the upper shell, the circuit board is electrically connected to the second end of the cartridge detection probe, the circuit board is used to measure the resistance value of the resistance ring and output a control signal to the heating assembly according to the measured resistance value; a key switch is arranged on the outer side of the upper shell, and the key switch is used to start the circuit board to detect the resistance ring and drive the heating assembly to heat the cartridge; and a battery is installed in the lower shell. The present invention automatically detects the resistance value of the cartridge and matches the appropriate heating temperature, and uses the best heating temperature for different cartridges.

Description

An electronic cigarette that automatically controls heating temperature based on cigarette cartridge detection

Technical Field

The present invention relates to the technical field of electronic cigarettes, and in particular to an electronic cigarette capable of automatically controlling heating temperature based on cigarette cartridge detection.

Background technique

Although the electronic cigarettes currently on the market all have temperature control systems, they are generally for the temperature control of a certain type of tobacco. After users purchase the product, they can only heat the specific tobacco, and cannot identify different brands of cigarette cartridges or flavors, and cannot give different control temperatures according to different cigarette cartridges. The most ideal control temperature of the cigarette cartridge cannot be achieved, and thus the best user experience cannot be provided to users.

Summary of the invention

The object of the present invention is to provide an electronic cigarette that automatically controls the heating temperature based on cartridge detection, so as to solve the problem in the prior art that different heating temperatures cannot be given according to different cartridges.

The present invention solves the above problems through the following technical solutions:

An electronic cigarette that automatically controls heating temperature based on cigarette cartridge detection, comprising:

A cigarette cartridge, wherein a resistance ring is provided on the cigarette cartridge;

A cigarette cover assembly, comprising a shell for mounting the cigarette cartridge, a heating assembly disposed in the shell, and a cigarette cartridge detection probe, wherein the first end of the cigarette cartridge detection probe contacts the resistance ring when the cigarette cartridge is inserted into the shell, and the heating assembly is used to heat the cigarette cartridge when the cigarette cartridge is inserted into the shell;

The electric control component comprises an upper shell and a lower shell, wherein the upper shell is connected to the shell of the cigarette cover component, and a circuit board is built in the upper shell, wherein the circuit board is electrically connected to the second end of the cigarette cartridge detection probe, and the circuit board is used to measure the resistance value of the resistance ring and output a control signal to the heating component according to the measured resistance value; a key switch is arranged on the outer side of the upper shell, wherein the key switch passes through the upper shell and is electrically connected to the circuit board and the heating component, and wherein the key switch is used to start the circuit board to detect the resistance ring and drive the heating component to heat the cigarette cartridge;

A battery for supplying power to the circuit board and the heating assembly is installed in the lower shell.

After the cigarette cartridge detection probe contacts the resistance ring on the cigarette cartridge inserted into the cigarette cover assembly, a closed loop is formed. When triggered by the key switch, the circuit board starts to detect the resistance ring, measures the resistance value of the resistance ring on the cigarette cartridge, and gives a control signal to the heating component according to the heating temperature corresponding to the resistance value. The control signal can be a PWM signal, and the heating component starts to heat the cigarette cartridge according to the PWM signal.

Furthermore, the heating assembly includes a heating plate base connected to the shell, the smoke bomb detection probe is installed on the outer side of the heating plate base, the heating plate base is connected to the bottom cover of the heating plate base, the bottom cover of the heating plate base has a built-in PCB board, the PCB board is electrically connected to one end of the heating plate through a spring pin connector, the PCB board is used to drive the heating plate according to the control signal of the circuit board, the other end of the heating plate passes through the hollow inner cavity of the heating plate base, and the PCB board is electrically connected to the key switch and the battery.

Furthermore, the circuit board is electrically connected to the cigarette cartridge detection probe via a connector.

Furthermore, the smoke cover assembly also includes a protective cover arranged between the shell and the heating assembly.

Furthermore, the protective cover is snap-connected with the shell.

Furthermore, the circuit board includes a voltage divider circuit module and a processor module, the input end of the voltage divider circuit module is connected to the cigarette cartridge detection probe, the cigarette cartridge detection probe includes a first contact and a second contact, and the first contact and the second contact form a resistance ring resistance detection circuit after contacting the resistance ring.

Compared with the prior art, the present invention has the following advantages and beneficial effects:

(1) The present invention matches the corresponding heating temperature according to the resistance value of the detected cigarette cartridge, and can provide the optimal heating temperature for cigarette cartridges of different types and flavors.

(2) The present invention can accurately provide a heating solution that is more suitable for each brand of cigarette cartridge, avoiding the problem of mismatch between heating temperature and cigarette cartridge caused by manual selection errors by users.

BRIEF DESCRIPTION OF THE DRAWINGS

Fig. 1 is a schematic diagram of the structure of the present invention;

FIG2 is a schematic diagram of the structure of a heating assembly;

FIG3 is an exploded view of the heating assembly;

FIG4 is an exploded view of a cross-sectional view of the structure of the present invention;

Fig. 5 is a cross-sectional view of the structure of the present invention;

FIG6 is an exploded view of the present invention;

FIG7 is a block diagram of the circuit board detection resistor loop;

FIG8 is a schematic diagram of a circuit board detection resistor loop;

Among them, 1-cigarette cartridge; 2-cigarette cover assembly; 3-electric control assembly; 11-positioning ring; 12-resistance ring; 21-cigarette cartridge detection probe; 22-button switch; 23-heating assembly; 24-housing; 25-protective cover; 31-connector; 32-circuit board; 33-battery; 34-lower housing; 231-PCB board; 232-heating plate base; 233-heating plate; 234-heating plate contact; 235-bottom cover of heating plate base.

Detailed ways

The present invention is further described in detail below in conjunction with examples, but the embodiments of the present invention are not limited thereto.

Embodiment 1:

As shown in Figures 1 and 4-6, an electronic cigarette that automatically controls the heating temperature based on cigarette cartridge detection includes:

A cigarette cartridge 1, on which a resistance ring 12 is provided;

The cigarette cover assembly 2 comprises a housing 24 for mounting the cigarette cartridge 1, a heating assembly 23 disposed in the housing 24, and a cigarette cartridge detection probe 21, wherein the first end of the cigarette cartridge detection probe 21 contacts the resistance ring 12 when the cigarette cartridge 1 is inserted into the housing 24, and the heating assembly 23 is used to heat the cigarette cartridge 1 when the cigarette cartridge 1 is inserted into the housing 24;

The electric control component 3 includes an upper shell and a lower shell 34. The upper shell is connected to the shell 24 of the cigarette cover component 2. The upper shell has a built-in circuit board 32. The circuit board 32 is electrically connected to the second end of the cigarette cartridge detection probe 21. The circuit board 32 is used to measure the resistance value of the resistance ring 12 and output a control signal to the heating component 23 according to the measured resistance value; a key switch 22 is arranged on the outer side of the upper shell. The key switch 22 passes through the upper shell and is electrically connected to the circuit board 32 and the heating component 23. The key switch 22 is used to start the circuit board 32 to detect the resistance ring 12 and drive the heating component 23 to heat the cigarette cartridge 1;

A battery 33 for supplying power to the circuit board 32 and the heating assembly 23 is installed in the lower housing 34 .

The circuit board 32 is electrically connected to the cigarette cartridge detection probe 21 through the connector 31. After the cigarette cartridge detection probe 21 contacts the resistance ring 12 on the cigarette cartridge 1 inserted into the cigarette cover assembly 2, a closed loop is formed. As shown in Figures 7 and 8, the circuit board 32 includes a voltage divider circuit module and a processor module. The input end of the voltage divider circuit module is connected to the cigarette cartridge 1 detection contact. The cigarette cartridge detection probe 21 includes a first contact and a second contact. The first contact and the second contact contact the resistance ring 12 to form a resistance detection circuit for the resistance ring 12. Under the triggering of the key switch 22, the circuit board 32 starts to detect the resistance ring 12. The processor module on the circuit board 32 has a built-in program in the processor with a corresponding relationship table between the resistance value of the resistance ring 12 and the heating temperature. According to the measured resistance value of the resistance ring 12 on the cigarette cartridge 1, the corresponding heating temperature is obtained by looking up the table, and a control signal is given to the heating assembly 23. Preferably, the processor model is STM32F031G6U6. The resistance value of the resistance ring 12 and the corresponding heating temperature comparison table are as follows:

Table 1 Comparison table of resistance ring resistance and heating temperature

When the processor outputs the temperature control of the heating component 23 according to the temperature value obtained by looking up the table, it is realized through the PWM wave output by the processor and the PID control of the heating circuit in the heating component 23. This part is the same as the principle of the heating circuit of the electronic cigarette in the prior art that uses a constant temperature value for heating. Different temperature values correspond to different duty cycles of the PWM wave. This does not belong to the improvement point of the present invention and will not be repeated here.

Embodiment 2:

On the basis of Example 1, in combination with Figures 2 and 3, the heating component 23 includes a heating plate base 232 connected to the shell 24, the cigarette cartridge detection probe 21 is installed on the outer side of the heating plate base 232, the heating plate base 232 is connected to the heating plate base bottom cover 235, the heating plate base bottom cover 235 has a built-in PCB board 231, the PCB board 231 is electrically connected to one end of the heating plate 233 through a spring pin connector; the PCB board 231 is used to drive the heating plate 233 according to the control signal of the circuit board 32, the other end of the heating plate 233 passes through the hollow inner cavity of the heating plate base 232, and the PCB board 231 is electrically connected to the key switch 22 and the battery 33. Preferably, the PCB board 231 is a circular circuit board 32 that matches the bottom cover 235 of the heating plate base. A through hole is opened on the circular circuit board 32, and a spring ejector is placed in the through hole. The side of the spring ejector close to the bottom cover 235 of the heating plate base is connected to the heating plate contact 234, and the other side of the spring ejector is connected to the heating plate 233. The bottom of the heating plate 233 is inserted into the through hole of the PCB board 231 and is electrically connected or disconnected with the PCB board 231 through the spring ejector.

Furthermore, the cigarette cover assembly 2 also includes a protective cover 25 arranged between the shell 24 and the heating assembly 23, and the protective cover 25 is snap-fitted to the shell 24 to prevent the heating plate 233 from touching the shell 24 and causing damage to the shell 24 when heating the cigarette cartridge 1.

Furthermore, a positioning ring 11 is provided on the cigarette cartridge 1 , and the positioning ring 11 is located above the resistance ring 12 , and is used to control the insertion depth of the cigarette cartridge 1 into the heating plate 233 and ensure that the detection contact of the cigarette cartridge 1 is in contact with the resistance ring 12 .

Although the present invention is described herein with reference to the illustrative embodiments of the present invention, the above embodiments are only preferred embodiments of the present invention, and the embodiments of the present invention are not limited to the above embodiments. It should be understood that those skilled in the art can design many other modifications and embodiments, which will fall within the scope and spirit of the principles disclosed in this application.

Claims (4)

1. An electronic cigarette based on cartridge detection automatic control heating temperature, characterized by comprising:

a cartridge provided with a resistance ring;

the cigarette cover component comprises a shell for mounting the cigarette bullet, a heating component and a cigarette bullet detecting probe, wherein the heating component is arranged in the shell, the first end of the cigarette bullet detecting probe is contacted with the resistance ring when the cigarette bullet is inserted into the shell, and the heating component is used for heating the cigarette bullet when the cigarette bullet is inserted into the shell;

The electronic control assembly comprises an upper shell and a lower shell, the upper shell is connected with the shell of the smoke cover assembly, a circuit board is arranged in the upper shell, the circuit board is electrically connected with the second end of the smoke cartridge detection probe, and the circuit board is used for measuring the resistance value of the resistance ring and outputting a control signal to the heating assembly according to the measured resistance value; the outer side of the upper shell is provided with a key switch, the key switch penetrates through the upper shell and is electrically connected with the circuit board and the heating assembly, and the key switch is used for starting the circuit board to detect the resistance ring and driving the heating assembly to heat the cartridge;

a battery for supplying power to the circuit board and the heating component is arranged in the lower shell;

The heating assembly comprises a heating plate base connected with the shell, the outer side of the heating plate base is provided with the cartridge detection probe, the heating plate base is connected with a heating plate base bottom cover, a PCB (printed Circuit Board) is arranged in the heating plate base bottom cover, the PCB is electrically connected with one end of the heating plate through a spring needle connector, the PCB is used for driving the heating plate according to a control signal of the circuit board, the other end of the heating plate penetrates through a hollow inner cavity of the heating plate base, and the PCB is electrically connected with the key switch and the battery;

The circuit board comprises a voltage division circuit module and a processor module, wherein the input end of the voltage division circuit module is connected with the cartridge detection probe, the cartridge detection probe comprises a first contact and a second contact, and the first contact and the second contact are contacted with the resistance ring to form a resistance ring resistance value detection loop.

2. The electronic cigarette of claim 1, wherein the circuit board is electrically connected to the cartridge detection probe via a connector.

3. The electronic cigarette of claim 1, wherein the lid assembly further comprises a protective cover disposed between the housing and the heating assembly.

4. The electronic cigarette of claim 3, wherein the protective cover is clamped with the housing.